A brush installation structure and a brush installation method

Abstract

The invention provides a brush mounting structure and a brush mounting method. The brush mounting structure comprises a brush holder and a holder connector. The brush holder is equipped with left and right brushes. The left and right brushes jointly form a flaring structure of which the diameter increases gradually in the up-down direction. The holder connector comprises a left connector and a right connector which are arranged in a split way in the left-right direction, wherein the left connector is assembled on the brush holder from left to right from the left side of the left brush or assembled on the brush holder from bottom to top from the upper side of the left brush, and the right connector is assembled on the brush holder from right to left from the right side of the right brush or assembled on the brush holder from bottom to top from the upper side of the right brush. The left connector and the right connector are respectively equipped with a fixed mounting structure used for being fixedly connected with the connector body. Thus, the left and right brushes arranged on the brush holder do not need to be extruded, the left and right brushes are not deformed in the mounting process, many problems and defects caused by brush deformation in the prior art are not caused, and the quality and service life of an electrical rotary connector are improved.

Description

technical field [0001] The invention relates to a brush installation structure and a brush installation method. Background technique [0002] With the rapid development of electric power and communication equipment, the application of electrical connectors is becoming more and more extensive. The electrical rotary connector plays a very important role as a connector that can realize rotary conductive connection. The Chinese utility model patent with the authorized announcement number CN20171177U and the authorized announcement date of 2011.03.30 discloses an electric rotary connector that is convenient for maintenance. This electric rotary connector includes a connector body on which an axial interval is fixed. The supporting device is provided, and the two supporting devices are connected by an axially extending bridging beam, that is, a bracket connector. The middle position of the two bracket connectors is provided with a slip ring assembly, that is, a slip ring bushing ...

AI Technical Summary

Problems solved by technology

The Chinese utility model patent with the authorized announcement number CN20171177U and the authorized announcement date of 2011.03.30 discloses an electric rotary connector that is convenient for maintenance. This electric rotary connector includes a connector body on which an axial interval is fixed. The supporting device is provided, and the two supporting devices are connected by an axially extending bridging beam, that is, a bracket connector. The middle position of the two bracket connectors is provided with a slip ring assembly, that is, a slip ring bushing and an electric slip ring arranged on it, to support The device is rotatably assembled on the slip ring assembly, wherein the bracket connector is a plate-shaped structure with an axially extending square hole. The bracket connector is connected with a brush bracket, and the left and right brushes are welded on the brush bracket. A flaring structure with a gradually larger diameter is formed in the up and down direction. The brush on the brush bracket passes through the square hole on the bracket connector and is tangent to the electric slip ring to achieve sliding contact with the electric slip ring. Considering the entire connection Due to the volume of the connector, the width of the square hole on the bracket connector is narrow and smaller than the maximum opening angle of the left and right brushes. When installing the brush bracket on the connector body through the bracket connector, the maximum opening angle of the two brushes needs to be adjusted. When the angular positions are squeezed toward each other and the distance between the angular positions of the two brushes is smaller than the width of the square hole, the brush can pass through the square hole on the bracket connector, so that the brush will be squeezed due to extrusion. Due to certain deformation, the contact angle between the brush and the slip ring after assembly cannot be guaranteed, the positive contact pressure cannot be guaranteed, and the friction between the brush and the slip ring cannot be accurately calculated when the slip ring rotates. The total rotational torque cannot be guaranteed, which has a great impact on the use of the electric rotary connector and reduces the service life of the electric rotary connector

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